Hydrothermal Preparation of Highly-oriented ZnO Nanorod Array Films

Abstract

Abstract: By using a simply and low-temperature hydrothermal method, ZnO nanorod array films with narrow size distribution and high orientation consistence were successfully prepared on ITO substrates, which were pre-treated with ZnO colloid solution. The obtained ZnO nanostructure was characterized by XRD and SEM. The results of characterization indicate that the nanorods are high-quality single crystals growing along (001) direction with a high consistent orientation perpendicular to the substrate. SEM images show that the nanorods have a very narrow size distribution of 20—50 nm with the average diameter about 40 nm. The room temperature photoluminescence of the as-prepared ZnO films exhibits a strong UV emission at about 390 nm and a weak emission at about 460 nm. The ease of fabricating high-quality ZnO nanorod arrays in large scales will greatly promote the fundamental research and practical applications of the ordered one-dimention ZnO structure in various fields of nanoscale science and technology.

Key words: ZnO, Nanorod array films, Hydrothermal method

CLC Number:

O641

TrendMD:

GUO Min, DIAO Peng, CAI Sheng-Min . Hydrothermal Preparation of Highly-oriented ZnO Nanorod Array Films[J]. Chem. J. Chinese Universities, 2004, 25(2): 345.

References

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